[填空题]Working-class families in the United States are usually nuclear, and
many studies indicate that working-class couples marry for love, not
for money. Upper-class couples may marry for love, but their commitment
of love is sometimes compromised by the recognition of their marriage (1) ______
as a way to preserve their class identity. Middle-class couples may also
marry for love, but the overridden task of middle-class families is also (2) ______
an-economic thing—to enhance the earning power of the breadwinner. (3) ______
Of course, working-class people are also affected by the economic
realities for their families must operate like economic units as well. (4) ______
However, the economic tasks of families are more a part of their dreams (5) ______
about marriage than they are a part of the reality of their married life.
Indeed, to many a working-class couples, love provides a way to escape (6) ______
from the difficulties of

[填空题]Working-class families in the United States are usually nuclear, and
many studies indicate that working-class couples marry for love, not
for money. Upper-class couples may marry for love, but their commitment
of love is sometimes compromised by the recognition of their marriage (1) ______
as a way to preserve their class identity. Middle-class couples may also
marry for love, but the overridden task of middle-class families is also (2) ______
an-economic thing—to enhance the earning power of the breadwinner. (3) ______
Of course, working-class people are also affected by the economic
realities for their families must operate like economic units as well. (4) ______
However, the economic tasks of families are more a part of their dreams (5) ______
about marriage than they are a part of the reality of their married life.
Indeed, to many a working-class couples, love provides a way to escape (6) _____